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we are allowed to have one A4 sheet for notes in our exams, this is what a student made (more info in comments)

The pic is actually from a copy of the original note, it's framed and hangs in my university. It was already there when I started, I don't know how old it is.
original sheet is in A4 (8.3 in × 11.7 in)
I'm sorry for the bad quality but the flash would have been mirrored by the glass.